Moltex Energy USA LLC subsidiary partners with Argonne National Lab on SSR development through ARPA-E funded programs. Provides US R&D pathway alongside Canadian commercial deployment focus. Argonne brings deep molten salt reactor research heritage from its historical fast reactor work. **Worth noting**: this is the only US-government R&D engagement for Moltex — substantially less than Aalo, Antares, Radiant, Valar, etc. Reflects Moltex's Canadian-first commercial focus.
Thermal energy storage system that pairs with SSR-W to enable peaking-plant operation. Stores reactor heat in molten salt tanks; dispatches to grid during demand peaks. Enables SSR-W to act as both baseload AND peaking — addressing the variable renewable balancing problem. Note: similar in concept to TerraPower's Natrium thermal storage approach but targets the molten salt reactor market segment instead of sodium fast reactor.
UK-based subsidiary developing the FLEX reactor — modular molten salt reactor designed for low-cost, flexible operation across electricity generation, hydrogen production, and industrial heat. Different commercial vehicle than the Canadian SSR-W program. Both subsidiaries (MoltexFLEX UK + Moltex Energy Canada) are assets of the in-administration parent Moltex Energy Limited and available to acquire as separate or combined assets per Hilco Valuation Services' April 2025 sale process.
Moltex's breakthrough recycling process — extracts 90% of the transuranic material from used nuclear fuel in 24 hours, with greater efficiency over longer periods. **Validated March 2025 on used fuel bundles from a commercial CANDU reactor** through hot cell experiments at Canadian Nuclear Laboratories — Canada's only facility equipped to handle used nuclear fuel. Versatile pretreatment step accommodates exotic, experimental, or advanced reactor fuels. Commercial-scale facility planned for Point Lepreau will recycle ~260,000 used fuel bundles from existing CANDU reactors and produce fuel for the entire 60-year operating life of one 300 MW SSR-W. **Pre-licensing consultation with CNSC initiated April 2025**.
Moltex's first-of-a-kind deployment site. Co-located WATSS recycling facility + SSR-W reactor + GridReserve thermal energy storage at the existing NB Power Point Lepreau site (currently operates a CANDU 6 reactor). The CANDU spent fuel from Point Lepreau and other Canadian CANDU plants becomes the fuel input for SSR-W. Selected by NB Power from over 90 applications as one of two reactor designs for the site. Strong Indigenous partnership with North Shore Mi'kmaq Tribal Council (New Brunswick). Engineering partners: IDOM and CANDU Energy Inc. (an AtkinsRéalis company).
Moltex's flagship reactor — 300-500 MWe molten salt reactor that uses recycled nuclear waste as fuel. Distinguished from all other reactors in the dataset by its **fuel input being existing nuclear waste** rather than mined/enriched uranium. **Permanently destroys long-lived transuranic elements including plutonium** during operation. Selected by NB Power from over 90 applications as one of two reactor designs for Point Lepreau site deployment. Inherently safe design via molten salt + low pressure. Planned co-deployment with WATSS recycling facility + GridReserve thermal energy storage.
Strategic Innovation Fund (SIF) component of the C$50.5M Government of Canada award (March 18, 2021). $47.5M of the total federal investment. Moltex matches dollar-for-dollar. Used to progress SSR-W and WATSS designs and validate key assumptions for CNSC Pre-Licensing Vendor Design Review Phase 2.
Atlantic Canada Opportunities Agency (ACOA) Regional Economic Growth Through Innovation component of the C$50.5M Government of Canada award (March 18, 2021). C$3M of the federal total. Used to further WATSS research. ACOA also separately granted C$5M to NB Power and C$561K to University of New Brunswick to strengthen the SMR cluster.
Per the SIF terms, Moltex committed to match the $47.5M SIF funding dollar-for-dollar. UK parent shareholders historically approved or denied Moltex Canada's capital deployment requests — a structural constraint that ultimately led to the UK parent's administration in March 2025.